| (19) |
 |
|
(11) |
EP 1 457 120 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
22.09.2004 Bulletin 2004/39 |
| (43) |
Date of publication A2: |
|
15.09.2004 Bulletin 2004/38 |
| (22) |
Date of filing: 10.03.2004 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
|
|
Designated Extension States: |
|
AL LT LV MK |
| (30) |
Priority: |
10.03.2003 JP 2003062660
|
| (71) |
Applicant: Ajinomoto Co., Inc. |
|
Tokyo 104-8315 (JP) |
|
| (72) |
Inventors: |
|
- Nishiuchi, Hiroaki, c/o Ajinomoto Co. Inc.
Kawasaki-shi, Kawasaki-ken 210-8681 (JP)
- Nishimori, Yuki, c/o Ajinomoto Co. Inc.
Kawasaki-shi, Kanagawa-ken 210-8681 (JP)
- Nishimura, Yasushi, c/o Ajinomoto Co. Inc.
Kawasaki-shi, Kanagawa-ken 210-8681 (JP)
|
| (74) |
Representative: Nash, David Allan |
|
HASELTINE LAKE, Redcliff Quay 120 Redcliff Street
Bristol BS1 6HU
Bristol BS1 6HU (GB) |
|
| |
|
| (54) |
Method for manufacture of cysteine-containing food material |
(57) [Problem] The matter to be solved is to provide a method by which cysteine is efficiently
prepared from γ-glutamylcysteine and also to provide an excellent method for the manufacture
of a food material containing a high amount of cysteine from yeast extract.
[Solution] A method for the manufacture of a food material containing a high amount
of cysteine, characterized in that, a yeast extract is prepared from yeast cells containing
γ-glutamylcysteine, the extract is concentrated by controlling at the temperature
of as low as not higher than 60°C to prepare a food material in a liquid form where
the solid concentration is not less than 10% and the food material is kept at 70 to
130°C.